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README.md

Vim Rtags

Vim bindings for rtags.

https://github.com/Andersbakken/rtags

Requirements

Installation

Vundle

Add the following line to .vimrc

Plugin 'lyuts/vim-rtags'

then while in vim run:

:source %
:PluginInstall

NeoBundle

Add the following line to .vimrc

NeoBundle 'lyuts/vim-rtags'

then while in vim run:

:source %
:NeoBundleInstall

Pathogen

$ cd ~/.vim/bundle
$ git clone https://github.com/lyuts/vim-rtags

Configuration

This plugin interacts with RTags by invoking rc commands and interpreting their results. You can override the path to rc binary by setting g:rtagsRcCmd variable. By default, it is set to rc, expecting it to be found in the $PATH.

Out of box this plugin provides mappings. In order to use custom mappings the default mappings can be disabled:

let g:rtagsUseDefaultMappings = 0

By default, search results are showed in a location list. Location lists are local to the current window. To use the vim QuickFix window, which is shared between all windows, set:

let g:rtagsUseLocationList = 0

To implement 'return to previous location after jump' feature, internal stack is used. It is possible to set its maximum size (number of entries), default is 100:

let g:rtagsJumpStackMaxSize = 100

Usage

Mappings

Mapping rc flag Description
<Leader>ri -U Symbol info
<Leader>rj -f Follow location
<Leader>rJ -f --declaration-only Follow declaration location
<Leader>rS -f Follow location (open in horizontal split)
<Leader>rV -f Follow location (open in vertical split)
<Leader>rT -f Follow location open in a new tab
<Leader>rp -U --symbol-info-include-parents Jump to parent
<Leader>rf -e -r Find references
<Leader>rn -ae -R Find references by name
<Leader>rs -a -F Find symbols by name
<Leader>rr -V Reindex current file
<Leader>rl -w List all available projects
<Leader>rw -e -r --rename Rename symbol under cursor
<Leader>rv -k -r Find virtuals
<Leader>rb N/A Jump to previous location

Unite sources

This plugin defines three Unite sources:

  • rtags/references - list references (i.e., <Leader>rf).
  • rtags/symbol - find symbol (i.e., <Leader>rs). Use rtags/symbol:i for case insensitibe search.
  • rtags/project - list/switch projects.

Code completion

Code completion functionality uses completefunc (i.e. CTRL-X CTRL-U). If completefunc is set, vim-rtags will not override it with RtagsCompleteFunc. This functionality is still unstable, but if you want to try it you will have to set completefunc by

set completefunc=RtagsCompleteFunc

Also RtagsCompleteFunc can be used as omnifunc. For example, you can use such approach with neocomplete(for more details read it's docs):

function! SetupNeocomleteForCppWithRtags()
    " Enable heavy omni completion.
    setlocal omnifunc=RtagsCompleteFunc

    if !exists('g:neocomplete#sources#omni#input_patterns')
        let g:neocomplete#sources#omni#input_patterns = {}
    endif
    let l:cpp_patterns='[^.[:digit:] *\t]\%(\.\|->\)\|\h\w*::'
    let g:neocomplete#sources#omni#input_patterns.cpp = l:cpp_patterns 
    set completeopt+=longest,menuone
endfunction

autocmd FileType cpp,c call SetupNeocomleteForCppWithRtags()

Such config provides automatic calls, of omnicompletion on c and cpp entity accessors.

Current limitations

  • There are no support for ovveriden functions and methods
  • Thre are no support for function's arguments completion

Notes

  1. This plugin is wip.

Development

Unit tests for some plugin functions can be found in tests directory. To run tests, execute:

$ vim tests/test_rtags.vim +UnitTest